<template>
  <div class="login_body">
    <div class="bg" />
    <div class="box">
      <div class="title">智慧园区-登录</div>
      <!--
        表单校验四要素：
         1.el-form：model（对应的值是表单对应的数据对象
         2.el-form:rules（对应的是校验规则）
         3.el-form-item:prop（表示的是要校验的字段）
         4.表单元素(el-input\el-checkbox....)v-model
          -->
      <el-form ref="form" :model="loginForm" :rules="rules">
        <el-form-item label="账号" prop="username">
          <el-input v-model="loginForm.username" />
        </el-form-item>

        <el-form-item label="密码" prop="password">
          <el-input v-model="loginForm.password" />
        </el-form-item>

        <el-form-item prop="remember">
          <el-checkbox v-model="remember">记住我</el-checkbox>
        </el-form-item>

        <el-form-item>
          <el-button type="primary" class="login_btn" @click="handleLogin"
            >登录</el-button
          >
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
// import { loginAPI } from '@/api/user'
const REMEMBER_KEY = 'remember_key' // 抽离“记住我”的常量
export default {
  name: 'Login',
  data () {
    return {
      loginForm: {
        username: '',
        password: ''
      },
      remember: false,
      rules: {
        username: [
          // trigger：[blur，change']失焦和内容改变都会触发校验
          { required: true, message: '用户名不可为空', trigger: 'blur' }
        ],
        password: [{ required: true, message: '密码不可为空', trigger: 'blur' }]
      }
    }
  },
  created () {
    // 去本地取一下之前存入的账号和密码 如果取到了 赋值操作
    const formStr = localStorage.getItem(REMEMBER_KEY)
    // 先判断有没有存储用户信息
    if (formStr) {
      const formObj = JSON.parse(formStr)
      // 回显
      this.loginForm.username = formObj.username
      this.loginForm.password = formObj.password
    }
  },
  method: {
    handleLogin () {
      this.$refs.form.validate(async flag => {
        if (!flag) return
        // const res = await loginAPI(this.loginFrom)
        // this.$store.dispatch('user/doLogin', res.data.token)
        // console.log(res)
        await this.$store.dispatch('user/doLogin', this.loginFrom)
        // 添加记住我逻辑
        if (this.remember) {
          localStorage.setItem(REMEMBER_KEY, JSON.stringify(this.form))
        } else {
          localStorage.removeItem(REMEMBER_KEY)
        }
        // 实现哪个页面退出的，登录时就继续跳转到对应的页面
        if (this.$route.query.redirect) {
          this.$router.push(this.$route.query.redirect)
        } else {
          // 跳转到首页
          this.$router.push('/')
        }
      })
    }
  }
}
</script>

<style scoped lang="scss">
.login_body {
  display: flex;
}
.bg {
  width: 60vw;
  height: 100vh;
  background: url('~@/assets/login-bg.svg') no-repeat;
  background-position: right top;
  background-size: cover;
}
.box {
  margin: 200px 10% 0;
  flex: 1;
  .title {
    padding-bottom: 76px;
    font-size: 26px;
    font-weight: 500;
    color: #1e2023;
  }
  ::v-deep() {
    .ant-form-item {
      display: flex;
      margin-bottom: 62px;
      flex-direction: column;
    }
    .ant-form-item-label label {
      font-size: 16px;
      color: #8b929d;
    }
    .ant-input,
    .ant-input-password {
      border-radius: 8px;
    }
  }
}
.login_btn {
  width: 100%;
}
</style>
